Nowhere in here are you demonstrating that you outperform a 2h warrior. Click bait. In order for you to outperform a 2h warrior you'd need your spells to cleave (which generally they do, but with long cooldowns) a group of enemies which have > physical armor than their magical armor + resistances + resistances applied against their HP pool. Since in general this never happens you simply cannot outperform a 2h warrior with a mage. You'd also need to be able to first turn CC without lone wolf. This is also something that generally doesn't happen with magi. Likewise you'd need your spells to scale with weapon damage which doesn't happen. People mention 2h poly warriors as OP because ranged attackers cannot use battering ram and battle stomp and rogues don't cleave and generally get slightly worse scaling towards the end game because of dual wield. Basically at the point where 2h will consistently crit and cleave it's better. Let's also not forget about stuff like 'silence' which is generally irrelevant to a physical attacker.
Btw no one said archers are 'underpowered', they're easily the heaviest hitters in the game and can also CC thanks to things like knock-down arrows.
